Guide to Marine Products
Typically, marine antennas are high gain omnidirectional antennas (6-9dBi) that allow maximum off shore range no matter which direction your vessel faces.
There are two main things to consider when selecting an appropriate antenna:
1 - the type of vessel you have, and
2 - how far off shore you plan on travelling.
As a simple rule of thumb, the higher the antenna gain, the further off shore you can go with signal. Our 8 or 9dBi marine antennas can easily extend your range up to 120km off the coast.
As higher gain antennas have a smaller angle to receive signal, smaller vessels (that sway side-to-side) may receive better signal with a slightly lower gain (such as a 7.5dBi) antenna to compensate for the motion.